eclipse加载maven工程提示pom.xml无法解析org.apache.maven.plugins:maven-resources-plugin:2.4.3解决方案

Multiple annotations found at this line:- Execution default-testResources of goal org.apache.maven.plugins:maven-resources-          plugin:2.4.3:testResources failed:  Plugin org.apache.maven.plugins:maven-resources-plugin:2.4.3 or one of its dependencies could not be resolved: Failed to collect  dependencies for org.apache.maven.plugins:maven-resources-plugin:jar:2.4.3 () (org.apache.maven.plugins:maven-resources- plugin:2.4.3:testResources:default-testResources:process-test-resources)- Plugin execution not covered by lifecycle configuration: org.apache.maven.plugins:maven-compiler-plugin:2.3.2:compile  (execution: default-compile, phase: compile)- CoreException: Could not get the value for parameter compilerId for plugin execution default-compile:  PluginResolutionException: Plugin org.apache.maven.plugins:maven-compiler-plugin:2.3.2 or one of its dependencies could not be  resolved: Failed to collect dependencies for org.apache.maven.plugins:maven-compiler-plugin:jar:2.3.2 ():  ArtifactDescriptorException: Failed to read artifact descriptor for org.apache.maven:maven-plugin-api:jar:2.0.6:  ArtifactResolutionException: Failure to transfer org.apache.maven:maven-plugin-api:pom:2.0.6 from http://repo1.maven.org/ maven2 was cached in the local repository, resolution will not be reattempted until the update interval of central has elapsed or  updates are forced. Original error: Could not transfer artifact org.apache.maven:maven-plugin-api:pom:2.0.6 from/to central (http:// repo1.maven.org/maven2): null to http://repo1.maven.org/maven2/org/apache/maven/maven-plugin-api/2.0.6/maven-plugin- api-2.0.6.pom- CoreException: Could not get the value for parameter compilerId for plugin execution default-testCompile:  PluginResolutionException: Plugin org.apache.maven.plugins:maven-compiler-plugin:2.3.2 or one of its dependencies could not be  resolved: Failed to collect dependencies for org.apache.maven.plugins:maven-compiler-plugin:jar:2.3.2 ():  ArtifactDescriptorException: Failed to read artifact descriptor for org.apache.maven:maven-plugin-api:jar:2.0.6:  ArtifactResolutionException: Failure to transfer org.apache.maven:maven-plugin-api:pom:2.0.6 from http://repo1.maven.org/ maven2 was cached in the local repository, resolution will not be reattempted until the update interval of central has elapsed or  updates are forced. Original error: Could not transfer artifact org.apache.maven:maven-plugin-api:pom:2.0.6 from/to central (http:// repo1.maven.org/maven2): null to http://repo1.maven.org/maven2/org/apache/maven/maven-plugin-api/2.0.6/maven-plugin- api-2.0.6.pom- Execution default-resources of goal org.apache.maven.plugins:maven-resources-plugin:2.4.3:resources failed: Plugin  org.apache.maven.plugins:maven-resources-plugin:2.4.3 or one of its dependencies could not be resolved: Failed to collect  dependencies for org.apache.maven.plugins:maven-resources-plugin:jar:2.4.3 () (org.apache.maven.plugins:maven-resources- plugin:2.4.3:resources:default-resources:process-resources)- Plugin execution not covered by lifecycle configuration: org.apache.maven.plugins:maven-compiler-plugin: 2.3.2:testCompile (execution: default-testCompile, phase: test-compile)

错误信息出现在pom头的project标签，project标签内容是

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
 xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">

原因

这是由于缺少maven-resources-plugin-2.4.3.jar文件。这个文件是在{user.home}\.m2\repository\org\apache\maven\plugins\maven-resources-plugin\下。{user.home}是maven的配置路径，一般是我的文档，是window-preferences-MyEclipse-Maven4MyEclipse-User Setting里面的Local Repository。

解决方案

step 1、在pom.xml文件中加入maven-resources-plugin配置

<dependency>    <groupId>org.apache.maven.plugins</groupId>    <artifactId>maven-resources-plugin</artifactId>    <version>2.4.3</version></dependency>

step 2、在命令行下运行mvn install ，如果执行正确应该会在{user.home}\.m2\repository\org\apache\maven\plugins\maven-resources-plugin\下看到maven-resources-plugin-2.4.3.jar文件

step 3、刷新工程（右键工程选择刷新项）

step 4、刷新maven配置，右键工程，选择Maven----Update Project Configuration

请仔细按着上述四步操作，应该不会有问题。

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下面的操作是本人自己操作，并非转载：

我按照以上操作之后，在eclipse中运行maven命令依旧不能执行成功，需要在cmd中执行命令才可以执行成功。

查找原因：

我在运行的maven命令后面加上 -X 查看详细命令，比如原本运行mvn test，现在就运行mvn test -X

找到报错关键字：CompilerException: tools.jar not found: jre7\.\lib\tools.jar

发现我的eclipse你的eclipse在 首选项-->java-->installed JREs里面的jre指向的是JDK而不是JRE，tools.jar是JDK才有的。

修改之后运行正常。